/********************************************************************************************************
 * @file	csa_stack.h
 *
 * @brief	This is the header file for BLE SDK
 *
 * @author	BLE GROUP
 * @date	2020.06
 *
 * @par     Copyright (c) 2020, Telink Semiconductor (Shanghai) Co., Ltd. ("TELINK")
 *          All rights reserved.
 *
 *          Redistribution and use in source and binary forms, with or without
 *          modification, are permitted provided that the following conditions are met:
 *
 *              1. Redistributions of source code must retain the above copyright
 *              notice, this list of conditions and the following disclaimer.
 *
 *              2. Unless for usage inside a TELINK integrated circuit, redistributions
 *              in binary form must reproduce the above copyright notice, this list of
 *              conditions and the following disclaimer in the documentation and/or other
 *              materials provided with the distribution.
 *
 *              3. Neither the name of TELINK, nor the names of its contributors may be
 *              used to endorse or promote products derived from this software without
 *              specific prior written permission.
 *
 *              4. This software, with or without modification, must only be used with a
 *              TELINK integrated circuit. All other usages are subject to written permission
 *              from TELINK and different commercial license may apply.
 *
 *              5. Licensee shall be solely responsible for any claim to the extent arising out of or
 *              relating to such deletion(s), modification(s) or alteration(s).
 *
 *          THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 *          ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *          WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *          DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER BE LIABLE FOR ANY
 *          DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 *          (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *          LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 *          ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *          (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *          SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *******************************************************************************************************/
#ifndef STACK_BLE_CSA_STACK_H_
#define STACK_BLE_CSA_STACK_H_


//See the Core_v5.0(Vol 6/Part B/4.5.8, "Data Channel Index Selection") for more information.
typedef enum {
	CHANNAL_SELECTION_ALGORITHM_1      	=	0x00,
	CHANNAL_SELECTION_ALGORITHM_2      	=	0x01,
} channel_algorithm_t;

typedef struct{
	u8	chmTbl[5];
	u8	numUsedChn;
	u16	rsvd; //chnIdentifier; //BISes use the same channel map as BIG, only ChnId different
			  //Put outside the structure to reuse channel table information and save RAM
	u8	rempChmTbl[40];	//can optimize to 37 later

	/* SubEvent channel used below */
	u16	prnSubEvent_lu;
	u16	prnSubEvent_se;

	u8	subEventIdx;
	u8	idxOfLastUsedChn;
	u16	lastUsedprn;

} ll_mgrChnParam_t;

typedef u8 (*ll_chn_index_calc_callback_t)(u8*, u16, u16, u8*, u8);


extern ll_chn_index_calc_callback_t	ll_chn_index_calc_cb;
extern channel_algorithm_t local_chsel;


void 	blt_csa1_calculateChannelTable(u8* chm, u8 hop, u8 *ptbl);
u16		blt_csa2_getPrn(u16 counter, u16 ch_id, bool prn_s);
u8 		blt_csa2_calculateRemapping_table(u8 chm[5], u8 *remap_tbl, u8 *channel_used_num);
u8 		blt_csa2_calculateChannel_index(u8 chm[5], u16 event_cntr, u16 channel_id, u8 *remap_tbl, u8 channel_used_num);

#if (LL_FEATURE_ENABLE_ISO)
	u8  	blt_csa2_getRemapIdxOfLastUsedChn4SE(u8 chm[5], u16 event_cntr, u16 channel_id, u8 *remap_tbl, u8 channel_used_num);
	void	blt_csa2_getPrnSubEvent(u16 lastUsed_prn, u16 chnId, u16* prnSubEvent_lu, u16* prnSubEvent_se);
	u8		blt_csa2_calcSubEventIdx(u8 chnUsedNums, u8 idxOfLastUsedChn, u16 prnSubEvent_se);
#endif



#endif /* CSA_STACK_H_ */
